Refuse vehicle having tailgate-mounted CNG tanks

A fuel system for a vehicle, comprising:

• a CNG fuel tank configured to provide fuel to power an engine of the vehicle;
• a shutoff valve configured to be positioned along a flow path between the CNG fuel tank and the engine, wherein the shutoff valve is configured to selectively restrict a flow of fuel along the flow path;
• a temperature sensor configured to monitor a temperature of at least one of the engine of the vehicle and a temperature associated with a body area of the vehicle and provide a temperature signal;
• and
• a controller coupled to the temperature sensor and the shutoff valve, wherein the controller is configured to at least one of engage and disengage the shutoff valve in response to the temperature signal indicating a temperature in excess of a temperature threshold.

A fuel system for a vehicle, comprising:

• a CNG fuel tank configured to provide fuel to power an engine of the vehicle;
• a shutoff valve positioned along a flow path between the CNG fuel tank and the engine, wherein the shutoff valve is configured to selectively restrict a flow of fuel along the flow path;
• a pressure sensor positioned along the flow path and configured to monitor a pressure of the flow of fuel;
• a proximity sensor positioned to monitor a relative position between the fuel system and an object within a surrounding environment;
• and
• a controller coupled to the pressure sensor and the shutoff valve, wherein the controller is configured to:
• identify a pressure fault condition in response to the pressure of the fuel falling below a pressure threshold, the pressure threshold relating to an expected operating pressure of the fuel;
• and
• at least one of engage and disengage the shutoff valve such that the shutoff valve restricts the flow of fuel in response to the pressure fault condition.